Novel evaporator process detecting and debugging system for nuclear fuel processing plant

Abstract

The invention relates to a novel evaporator process detecting and debugging system for a nuclear fuel processing plant. The system comprises a controller and instrument equipment; the instrument equipment is accessed to the controller through a foundation field bus. The system has the advantages that foundation field bus intelligent equipment (Foundation Fieldbus, which is called FF for short) takes the place of traditional equipment, FF bus-type intelligent equipment is adopted to perform testing control on processing parameters to convert analog quantity signals of 4-20 mA and thermocouple and the like into more accurate digital quantity signals, and the digital quantity signals are transmitted on the bus to facilitate the improvement of transmission accuracy and efficiency.

Description

Technical field [0001] The invention belongs to the field of nuclear engineering equipment, and specifically relates to a process detection and debugging system for an evaporator in a new type of nuclear fuel reprocessing plant. Background technique [0002] Non-boiling natural circulation evaporator is an important equipment in nuclear fuel reprocessing engineering. The use of evaporator can realize the concentration of radioactive waste liquid, reduce the amount of waste storage, and achieve waste minimization. Due to the harsh working conditions of the evaporator and the danger of "red oil" explosion, it is very important to accurately measure various parameters during the operation of the evaporator and strictly control the operating conditions of the evaporator. The important detection parameters of the evaporator include liquid level, density, temperature and pressure, which are all necessary to ensure the quality of the evaporator and the safety of the evaporator. [0003] ...

AI Technical Summary

Problems solved by technology

The disadvantage of this is that the load on the controller is large, and once a situation occurs, the consequences will be more serious. Second, the feedback of the adjustment control loop is slow, which is not conducive to timely adjustment.

Traditional instrument debugging often requires operators to calibrate and parameterize each instrument on site, which is inefficient and difficult to judge the status of the instrument during routine maintenance

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